max_slot_wal_keep_size: Documentation: 17: 26.2. Log-Shipping Standby Servers. Amazon Aurora PostgreSQL parameters. UGREEN NVMe Adapter, M.2 SSD M and M+B Key to NVMe PCIe 4.0 X4 ... .
Rename configuration parameter wal_keep_segments to wal_keep_size (Fujii Masao) ... Allow WAL storage for replication
slots to be limited by
max_slot_wal_keep_size (Kyotaro Horiguchi).
The max_slot_wal_keep_size parameter controls the quantity of WAL data that the RDS for PostgreSQL DB instance retains in the pg_wal directory to serve slots.
If the database parameter max_slot_wal_keep_size is set to a non default value, and the restart_lsn of a replication
slot falls behind the current LSN by more than this size, the DMS task fails due to removal of required WAL files.